1973 Mack R: recalls and complaints
NHTSA lists 9 recall campaigns for the 1973 Mack R. The newest campaign is 78V171000. NHTSA received the report on 8 Aug 1978. The NHTSA record gives the component Steering / Linkages / Knuckle / Spindle / Arm. NHTSA has no complaint on file for this model year.
The NHTSA recall file shows no do-not-drive advisory and no park-outside advisory on these campaigns.
This page cannot show if a recall applies to one vehicle. The NHTSA VIN lookup shows the unrepaired recalls of one vehicle.
Remedy of the newest campaign, 78V171000, in the NHTSA record
Dealer will inspect and, if necessary, replace the left steering knuckle with an improved type of knuckle.
Complaint information entered into NHTSA’s Office of Defects Investigation vehicle owner's complaint database is used with other data sources to identify safety issues that warrant investigation and to determine if a safety-related defect trend exists.
NHTSA publishes these words. Source: NHTSA Datasets and APIs, section Complaints, read on . Complaint file through . Recall file through .
Since the last update
No tracked figure of this page changed in a data update. What the log tracks
Recall campaigns
9 campaigns, newest first. 57,293 units in total.
- 78V171000Steering / Linkages / Knuckle / Spindle / Arm
- 77V173000Engine and Engine Cooling / Cooling System / Fan
- 76V057000Steering / Linkages
- 75V118000Suspension / Multiple Axle
- 74V002000Engine and Engine Cooling / Engine
- 74V001000Suspension
- 74V227000Exterior Lighting / Headlights / Switch
- 73V153000Electrical System / Horn
- 73V102000Service Brakes, Air
78V171000Received . 2,100 units.
Steering / Linkages / Knuckle / Spindle / Arm
- Defect, in the NHTSA record
Deficiencies, in the form of forging laps, cracks and excessive decarburization during heat treatment, exist in the steering knuckles. Stresses imposed with integral hydraulic power steering may lead to a failure in the area of the steering arm attaching boss. This type of failure would cause loss of steering control.
- Remedy, in the NHTSA record
Dealer will inspect and, if necessary, replace the left steering knuckle with an improved type of knuckle.
Report filed by MACK TRUCKS, INCORPORATED. Owner notification date in the NHTSA record: .
77V173000Received . 48,000 units.
Engine and Engine Cooling / Cooling System / Fan
- Defect, in the NHTSA record
The flex blade fans on the involved vehicles may develop cracks in the laminated stiffener as a result of fatigue during operation. If such a condition exists and the cracks go undetected, continued operation could cause pieces of the stiffener to break off.
- Remedy, in the NHTSA record
Dealer will replace the original fan with a steel fixed blade fan, free of charge.
Report filed by MACK TRUCKS, INCORPORATED. Owner notification date in the NHTSA record: .
76V057000Received . 27 units.
Steering / Linkages
Report filed by MACK TRUCKS, INCORPORATED. Owner notification date in the NHTSA record: .
75V118000Received . 414 units.
Suspension / Multiple Axle
Report filed by MACK TRUCKS, INCORPORATED. Owner notification date in the NHTSA record: .
74V002000Received . 844 units.
Engine and Engine Cooling / Engine
Report filed by MACK TRUCKS, INCORPORATED.
74V227000Received . 1,023 units.
Exterior Lighting / Headlights / Switch
Report filed by MACK TRUCKS, INCORPORATED. Owner notification date in the NHTSA record: .
73V153000Received . 1,285 units.
Electrical System / Horn
Report filed by MACK TRUCKS, INCORPORATED. Owner notification date in the NHTSA record: .
73V102000Received . 2,481 units.
Service Brakes, Air
Report filed by MACK TRUCKS, INCORPORATED. Owner notification date in the NHTSA record: .
The campaign number opens the NHTSA record. Each quotation is the text of the NHTSA recall file.
Recall campaign: One recall in the NHTSA recall file, with one campaign number. A campaign can name many makes, models and model years.
Units: The number of vehicles or products that a recall can include. The manufacturer or the firm reports the number to the agency.
Complaints by component
The NHTSA complaint file has no complaint for this model year.
Investigations
The NHTSA investigation file has no investigation that names this model year.
Investigation: A study of a possible safety defect by the NHTSA Office of Defects Investigation. An investigation with no closing date in the NHTSA file is open.
Other model years
The number under each year is the number of recall campaigns.
Official channels
- NHTSA VIN lookupNHTSA shows the unrepaired recalls of one vehicle from its VIN or its license plate.
- NHTSA: report a safety problemThe NHTSA form for a complaint about a vehicle, a tire, a child seat or equipment.
- NHTSA page of the 1973 Mack RThe recalls, the complaints and the investigations that NHTSA shows for this model year.
Cite this page
Recall Register. 1973 Mack R: recalls and complaints. https://recallregister.com/vehicle/mack/r/1973/. Source: NHTSA Office of Defects Investigation, recall, complaint and investigation files. Data through .
Sources
- Source
- NHTSA Office of Defects Investigation
- Licence
- US government work, public domain
- Recall file through
- 29 Sep 2026
- Complaint file through
- 29 Mar 2018
- First complaint in the file
- 1 Jan 1995
- Manufacturer in the recall file
- MACK TRUCKS, INCORPORATED
The NHTSA record is the authority. A complaint count is the number of different complaint numbers for the make, the model and the model year. How the register is made. Report an error.
Questions
- How many units are in the recall campaigns for the 1973 Mack R?
- 57,293 units in 9 campaigns. A campaign can name other models and model years, and its units include them.
- How many recall campaigns does the Mack R have for all model years?
- NHTSA lists 37 recall campaigns for the Mack R, model years 1965 to 1992. 9 of them name the 1973 model year.
- Is an NHTSA investigation of the 1973 Mack R open?
- The NHTSA investigation file has no investigation that names this model year.